Take now your son

Genesis 22:2
He said "Take now your son ..."

This is a great example of faith by Abraham of his God. For God asked him to sacrifice his only son (from his wife). What's more than just fatherly relationship is the fact that God has promised Abraham great blessings coming through this particular son. That would mean Abraham believed God that He can still fulfill His promise. It was written that God would be able to resurrect his son, even though such things was not recorded before. In essence, Abraham believed God greatly and did not question God or try to apply human logic.